-
Notifications
You must be signed in to change notification settings - Fork 5
/
sha256.h
42 lines (33 loc) · 1.26 KB
/
sha256.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
/*********************************************************************
* Filename: sha256.h
* Author: Brad Conte (brad AT bradconte.com)
* Copyright:
* Disclaimer: This code is presented "as is" without any guarantees.
* Details: Defines the API for the corresponding SHA1 implementation.
*********************************************************************/
#ifndef SHA256_H
#define SHA256_H
#ifdef __cplusplus
extern "C" {
#endif
/*************************** HEADER FILES ***************************/
#include <stddef.h>
/****************************** MACROS ******************************/
#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
/**************************** DATA TYPES ****************************/
typedef unsigned char uchar; // 8-bit byte
typedef unsigned int uint; // 32-bit word, change to "long" for 16-bit machines
typedef struct {
uchar data[64];
uint datalen;
unsigned long long bitlen;
uint state[8];
} SHA256_CTX;
/*********************** FUNCTION DECLARATIONS **********************/
void sha256_init(SHA256_CTX *ctx);
void sha256_update(SHA256_CTX *ctx, const uchar data[], size_t len);
void sha256_final(SHA256_CTX *ctx, uchar hash[]);
#ifdef __cplusplus
}
#endif
#endif // SHA256_H